Published at Tuesday, January 15th 2019, 06:21:36 AM. Bathroom By Jacqualine Renaud. Many people assume that if they are remodeling a small bathroom it will only take a few days, or anyway it will take much less time than a larger one. This is not necessarily the case. Depending on how many items you are changing in the bathroom your contractor will have to go through all the same steps as a larger bathroom. However, planning refers not only to defining the duration of the renovation works but also certain intermediate steps such as ordering and purchasing tiles, fixtures, custom-built vanity or cabinets to make sure they can be delivered when your contractor needs them.